Privacy policy
Last updated: November 14, 2026
This site, irrationallyyours.com, is run by Dan Ariely. This page explains what we collect when you use it and what we do with it. The short version: we ask only for what we need, we use it only for what this page says, and we never sell it.
What we collect
- Your email address, the page you signed up on, and the page that brought you there, if you click "Update me" and sign up.
- Whatever you send us, if you email us.
- Anonymous visit counts, whenever you open a page: which page and when, the page or site that sent you here, your approximate location (such as your country or city), and your browser, operating system and device type. We use them only to see how many people visit and which pages they read.
How we use it
- To write to you with updates on Dan's new books, and when they are ready.
- To answer you, if you wrote to us.
We do not sell, rent or trade your details, and we do not use them for anything else.
Who else handles it
We use a few services to run the site: Kit (kit.com), a US-based email service, to keep the email list and send the emails, Google Sheets to keep our own copy of the list, Vercel (vercel.com) to host the site and count visits anonymously, and Google Fonts to show the site's typefaces (your browser loads them from Google, which sees your IP address).
Kit keeps your details for us under its Data Processing Addendum (kit.com/dpa). We have switched off open and click tracking in Kit, so Kit does not record whether you open our emails or which links you click.
Your choices
- Every email has an unsubscribe link. One click and you are off the list.
- You can ask us to show you, correct or delete what we hold about you by writing to pi@danariely.com.
Children
The email updates are for people 13 and older. We do not knowingly collect personal details from children under 13. If you think a child under 13 has sent us their details, write to us and we will delete them.
Cookies
This site does not use cookies for advertising or tracking. We count visits with Vercel Web Analytics, which uses no cookies. Instead, it tells visitors apart with a scrambled code made from the request your browser sends. That code resets every day and cannot be used to follow you from one day to the next or across websites. It does not tell us who you are.
Changes
If we change this policy, we will update the date above, and tell subscribers about any important change.